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Developing climate change agro-adaptation strategies through field experiments and simulation analyses for sustainable sorghum production in semi-arid tropics of India

OAR@ICRISAT

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Relation http://oar.icrisat.org/12334/
https://www.sciencedirect.com/science/article/pii/S0378377423002640?via%3Dihub
https://doi.org/10.1016/j.agwat.2023.108399
 
Title Developing climate change agro-adaptation strategies through field experiments and simulation analyses for sustainable sorghum production in semi-arid tropics of India
 
Creator Kamdi, P J
Swain, D K
Wani, S P
 
Subject Crop Modelling
Sorghum
Soil Science
India
 
Description Change in rainfall pattern with longer dry period depletes soil water content (SWC) and incorrect sowing time adversely affects rainfed sorghum production in Semi-Arid Tropics (SATs). The present study was conducted to develop agricultural water management strategies for improving SWC and to evaluate sowing time as climate change agro-adaptations for sorghum production in SATs. The field experiments on two land-water management (flatbed, broad bed furrows (BBF)) and four nutrient management (application of macro-and micronutrients through combination of chemical and organic fertilizers) were conducted in 2014 and 2015 at International Crops Research Institute for the Semi-Arid Tropics, India. The average SWC in ‘BBF’ was higher over ‘flatbed’ by 0.90 cm and 1.06 cm in 0–30 cm soil depth, 0.67 cm and 1.02 cm in 30–60 cm depth, 0.51 cm and 0.84 cm in
60–90 cm depth and, 0.34 cm and 0.67 cm in 90–120 cm during 2014 and 2015, respectively. The SWC in BBF was higher over flatbed by 7.28% throughout 0–120 cm soil depth during longest dry period of 26 days in the year 2014. The simulation analyses using DSSAT Version 4.6 for Coupled Model Intercomparison Project Phase 5 with RCP 4.5 stated that postponing the normal sowing time (30 June) to 10 July resulted in lower grain yield reduction i.e. 14.75% in 2030 and 19.37% in 2050 as compared to base period (1988–2007) yield with normal sowing in Parbhani location of India. The BBF combined with macro-and micronutrients application through chemical fertilizer and postponing sowing time was found the effective climate change agro-adaptation strategies for improving sorghum production in SATs. This study indicates the need for desired policy orientation by the government to promote integrated land-water-nutrient management as the effective agro-adaptations to climate
change in SATs.
 
Publisher Elsevier
 
Date 2023-06-07
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_by_nc_nd
 
Identifier http://oar.icrisat.org/12334/1/Agricultural%20Water%20Management_286_01-14_2023.pdf
Kamdi, P J and Swain, D K and Wani, S P (2023) Developing climate change agro-adaptation strategies through field experiments and simulation analyses for sustainable sorghum production in semi-arid tropics of India. Agricultural Water Management (TSI), 286. 01-14. ISSN 0378-3774